Pentax Glass

Discussion in 'Beyond the Basics' started by darin3200, Oct 25, 2005.

  1. darin3200

    darin3200 TPF Noob!

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    I'm looking at buying a wide-angle lens that is either M42 screw or K mount. There is a pentax that I really like. Anyone have expierence with these lenses or have any insights?

    Thanks
     
  2. photobug

    photobug TPF Noob!

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    For what camera? Film or digital? Makes a difference on how wide "wide" is.

    Also may make a difference whether an m42 mount will work with your body.

    Need a little input to properly answer your question.
     
  3. jstuedle

    jstuedle No longer a newbie, moving up!

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    If is a M42 mount I would imagine it's for a film camera. Pentax made some very fine glass back in the day. If my memory serves, the Takumar 28mm was an outstanding wide angle available in either M42 or K mounts.
     
  4. darin3200

    darin3200 TPF Noob!

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    photobug: Film camera, 28 or 35mm, I plan to get a k to m42 mount converter. I was just wondering if pentax made good lenses.

    jstuedle: Yeah, I'm looking at a Takumar 28mm or a Chinon 28mm. Thanks for the input :)
     
  5. selmerdave

    selmerdave TPF Noob!

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    The 28/3.5 lenses are generally considered to be superior to the larger aperature (2.8, 2) ones. I think generally the "K" would be the most desireable in K-mount, while for M42 mount the SMC Takumar would be considered best, they're essentially the same lens in a slightly different package. "M" is also supposed to be very good, I think (it's considered) slightly better than the "A". I haven't really heard that any of the M42's are bad, but that's just from reading online. From experience all I have used is the K 28/3.5 and it is excellent to be sure.

    While I'm sure it's possible descriptions I've read of using the converters didn't sound to pretty, I would be very sure of what you're getting into before going that route. ie. to remove a lens you have to first unscrew the lens, and then use some sort of a pen or a tool to remove the adaptor. Maybe it's easier going the other way, I don't know.

    Dave
     
  6. usayit

    usayit No longer a newbie, moving up!

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    I have a collection of pentax cameras and I really haven't found any Takumars that I did not like. All are very fine glass. Unfortunately, I don't have too much experience with either the 28 or 35mm lenses. The only glass that might have a slight complaint from me is the 50mm f1.4. Although they were considered one of the finest pieces in that time period, the coating wasn't stable and over the years they developed a yellow hue. Despite the yellow hue, I still shoot lots of B&W film with it and it produces nice results.

    If you find a good source ( other than ebay ) for takumars, please post. I'm always in the market.

    some links for your reading
    http://www.bdimitrov.de/kmp/
    http://www.aohc.it/indexe.htm
     
  7. usayit

    usayit No longer a newbie, moving up!

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    curious... which Kmount camera do you have?
     
  8. darin3200

    darin3200 TPF Noob!

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    Thanks for the responses!
    Usayit: Praktica B200
     
  9. selmerdave

    selmerdave TPF Noob!

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    usayit, I presume you know the trick about leaving the lens in sunlight for a week or so to get rid of the yellow hue, I don't think it has anything to do with degradation of the coating.

    Dave
     
  10. photobug

    photobug TPF Noob!

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    Not much to add to that. There is a mod you can make to the m42-to-K mount adapter so it will come off with the lens.

    The disadvantage of using m42 mount lenses is it's totally manual. Stop down metering etc.

    jstuedle- m42 works just fine on the Pentax digital bodies. I've got a Pentacon (medium format) 300mm lens with m42 threads that works perfectly well on my *istD with an adapter.

    Some examples:
    http://bimjo.com/bimjoriginal/pics/forums3/gull01.jpg
    http://bimjo.com/bimjoriginal/pics/forums3/gull02.jpg
    http://bimjo.com/bimjoriginal/pics/forums3/gull03.jpg
    http://bimjo.com/bimjoriginal/pics/forums3/gull04.jpg
     
  11. jstuedle

    jstuedle No longer a newbie, moving up!

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    I stand corrected. Forgot about the adapters.
     
  12. darin3200

    darin3200 TPF Noob!

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    photobug: It turns out that the B200 has a "B" bayonet, not "K". However, if I can't find those lenses a M42 converter will work fine. I had a 50mm pentacon on my first camera and I always had manually do everything. I must be getting lazy :)
     

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